Abstract
Using a cavity with a large Fresnel number, a nontrivial large-scale order resulting from global multimode-interaction dynamics is found in the transverse structure of a CO2 laser beam. Two-dimensional optical lattices displaying several hundred phase singularities each have been observed. The symmetry properties of these far-field patterns and their associate temporal spectra are studied as a function of two control parameters: the Fresnel number and the transverse intermode spacing.
| Original language | English |
|---|---|
| Pages (from-to) | 5955-5958 |
| Number of pages | 4 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 46 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1 Jan 1992 |
| Externally published | Yes |
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